这“先走的一步”,就是EAC独有的驱动器偏移值。通过AccurateRip网站的介绍,我们能看到他们对这个技术的信心:
他们认为:Conventional CD ripping programs (such as iTunes, or Windows Media Player) do not verify audio, beyond CD drive self verification and as already mentioned there exists no CD/DVD drive which can report all errors. This can lead to potentially speaker damaging spikes being stored in the audio, with no way of knowing if there are errors: --大概意思,一般的CD抓轨软件(例如WMP或iTunes)不会针对驱动器去做检测和矫正,无法确保数据的准确性,而EAC可以。如果驱动器发生错误,如下图,会出现突然的尖峰破坏,并且这些错误的数据会保留在抓取的音频文件里,并不会被发现。而EAC可以发现并矫正这些错误。